image_list image_listE

Gamophyceae: Zygnematales: Desmidiaceae

 Cosmarium ochthodes
Nordstedt

Cosmarium ochthodes Species: Cell body large, 65-94 μm long, 48-67 μm wide, L/W=1.3, isthmus 14-27 μm wide; semicells semielliptical or ovoidal pyramid in shape; cellwall covered with large granules showing crenulated margins, 7 granules present between apical and basal corners; apex flattened with 4 granules (Illustrations of The Japanese Fresh-water Algae, 1977).

Cosmarium ochthodes Nordstedt (or C. margaritiferum Meneghini ?), cell body 81 μm long, 56 μm wide, isthmus 20 μm wide, L/W=1.5, x 640, Hannoki numa (pond), Aizu Recreation Park, Aizuwakamatsu city, Fukushima Pref., Japan, May 4, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Cosmarium Cosmarium Cosmarium Cosmarium

Please click on images for viewing enlarged.
Copyright Protist Information Server